渗铝工艺对激光冲击强化效果影响  

Influence of alumetizing to laser shock peening

作　　者：周鑫[1] 李应红[1] 汪诚[1] 何卫锋[1] 李伟[1] 杨卓君[1] 

机构地区：[1]空军工程大学工程学院飞行器与动力工程系,陕西西安710038

出　　处：《材料热处理学报》2010年第5期138-142,共5页Transactions of Materials and Heat Treatment

摘　　要：为了研究高、低温两种渗铝工艺对激光冲击强化效果的影响,对1Cr11Ni2W2MoV和K417两种材料制成的试片分4种状态(表面抛光、渗铝、渗铝+激光冲击强化、激光冲击强化+渗铝)分别进行了振动疲劳对比试验,得到了"渗铝"、"渗铝+激光冲击强化"和"激光冲击强化+渗铝"等三种工艺对材料抗疲劳性能的影响,初步分析了相关机理。结果表明"激光冲击强化+渗铝"工艺在工程应用中具有可行性和优越性。In order to investigate the influence of high （ or low） temperature alumetizing on laser shock peening （LSP） , vibration fatigue tests were performed on I Cr11Ni2W2MoV steel and K417 alloy specimens surface-treated by different processes （surface polishing, alumetizing, alumetizing ＋ LSP and LSP ＋ alumetizing） respectively. The mechanisms of surface treatments on fatigue property of the alloys were discussed. The results show that the alloys treated with LSP ＋ alumetizing exhibit best fatigue property for the four surface treatment processes and thus the process of LSP ＋ alumetizing is recommended to engineering application.

关 键 词：渗铝 激光冲击强化 回火硬化 回火脆性 

分 类 号：TG156.86[金属学及工艺—热处理]